Top network posts

• 205 Help with a prime number spiral which turns 90 degrees at each prime
• 68 Is it possible to draw this picture without lifting the pen?
• 52 A conjectural trigonometric identity
• 50 Why should we believe in the axiom of regularity?
• 43 Expressing the Riemann Zeta function in terms of GCD and LCM
• 42 Can we trap light in a polygonal room?
• 41 $\forall n\in\mathbb N:n^x\in\mathbb Q$ implies $x\in\mathbb Z$ - elementary proof?
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